Underwood .458 SOCOM Ammo – 500 Grain Lead Flat Nose Subsonic Suppressed Hunting Rounds (20 Round Box)

Underwood .458 SOCOM 500 Grain Lead Flat Nose Subsonic ammunition is a premium specialty rifle load engineered for shooters who demand heavy-bullet performance, deep penetration, and reliable function in suppressed big-bore AR platforms. Built around the hard-hitting .458 SOCOM cartridge, this load delivers serious stopping power while maintaining subsonic velocities ideal for suppressor use.

Loaded with a massive 500 grain lead flat nose projectile, this round is designed for straight-line penetration and strong terminal effectiveness at close-to-medium ranges. The flat nose profile enhances feeding reliability in .458 SOCOM rifles while maximizing energy transfer on impact, making it well-suited for hog hunting, predator control, and specialty defensive applications.

Optimized for subsonic performance, this ammunition reduces noise signature and eliminates the supersonic crack when used with a properly configured suppressor. Packaged in a 20-round box, it’s an outstanding choice for shooters building suppressed AR-style rifles who want uncompromising big-bore capability.

Quick Highlights

• Caliber: .458 SOCOM

• Bullet Weight: 500 Grain

• Bullet Type: Lead Flat Nose (FN)

• Intended Use: Suppressed Hunting / Big-Bore Defense

• Rounds Per Box: 20

• Manufacturer: Underwood Ammunition

Use Cases & Applications

• Suppressed .458 SOCOM AR platforms

• Hog and predator hunting

• Close-range big-bore applications

• Reduced-noise shooting setups

• Specialty defensive rifle use

Technical Details

• Manufacturer: Underwood Ammunition

• Product Line: Underwood Specialty Ammunition

• Caliber: .458 SOCOM

• Bullet Weight: 500 Grain

• Projectile Type: Lead Flat Nose (FN)

• Velocity Type: Subsonic

• Rounds per Box: 20

• Application: Suppressed Hunting / Specialty Big-Bore Rifle Ammunition

Ammunition Sales Notice: By purchasing ammunition from RJ Whited LLC, you certify that you are legally permitted to purchase and possess ammunition under all applicable federal, state, and local laws. You must be at least 18 years of age to purchase rifle or shotgun ammunition and at least 21 years of age to purchase handgun ammunition. It is the buyer’s responsibility to know and comply with all laws and restrictions in their jurisdiction. We will not ship ammunition to locations where it is prohibited. All ammunition sales are final.